{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical", "Disease"], "input": "A correlation was found between serum acid protease activity and prothrombin time , and the increase in cathepsin D activity was sustained over several days compared with aspartate aminotransferase , which showed a sharp early peak and then a fall ."}
{"Chemical": ["aspartate"], "Disease": []}